On 12/02/2021 18:56, Philippe Mathieu-Daudé wrote:
On 2/9/21 8:30 PM, Mark Cave-Ayland wrote:
The MacOS toolbox ROM performs 4 byte reads/writes when transferring data to
and from the target. Since the SCSI bus is 16-bits wide, use the memory API
to split a 4 byte access into 2 x 2 byte accesses.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
---
hw/scsi/esp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Out of curiosity, what is the bus used?
AFAICT it's a custom logic chip that sits on the CPU address/data buses that does the
decoding between the CPU and ESP chip. Other than a simple block diagram of the
Quadra there isn't much official documentation out there :/
Are you planning to review any more of this series? I'm keen to put out a (hopefully
final) v3 soon, but I'll hold off for little while if you want more time to look over
the remaining patches.
ATB,
Mark.
